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Phys Rev B Condens Matter
; 52(10): 7675-7681, 1995 Sep 01.
Article
in English
| MEDLINE
| ID: mdl-9979712
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Phys Rev B Condens Matter
; 51(18): 12776-12781, 1995 May 01.
Article
in English
| MEDLINE
| ID: mdl-9978054